Explore the variety of orthopaedic care specialties offered at the Gildenhorn Institute for Bone and Joint Health. On average, our doctors perform more than 2,000 orthopaedic procedures at Sibley Memorial Hospital each year, including approximately 600 total joint replacements and 850 arthroscopies. Sibley’s operating rooms are the most advanced in the area, with state-of-the-art arthroscopy equipment and high-definition monitors in each room.